<template>
  <div class="container">
    <div class="app-container">
      <el-button class="btn-add" size="mini" type="primary" @click="addPermission(0,1)">添加权限</el-button>

      <el-table
        :data="permissionList"
        row-key="id"
        border
        :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
      >>
        <el-table-column prop="name" label="名称" />
        <el-table-column prop="code" label="标识" />
        <el-table-column prop="description" label="描述" />
        <el-table-column #default="{row}" label="操作">
          <el-button size="mini" type="text" @click="addPermission(row.id,2)">添加</el-button>

          <el-button size="mini" type="text" @click="getPermissionDetail(row.id)">编辑</el-button>
          <el-popconfirm title="这是一段内容确定删除吗？" @onConfirm="deletePermission(row.id)">
            <el-button slot="reference" style="margin-left:10px" size="mini" type="text">删除</el-button>
          </el-popconfirm>

        </el-table-column>

      </el-table>

    </div>

    <!-- 放置一个弹层 用来编辑新增节点 -->
    <el-dialog :title="`${showText}权限点`" :visible="showDialog" @close="showDialog = false">
      <!-- 表单 -->
      <el-form ref="perForm" :model="formData" :rules="rules" label-width="120px">
        <el-form-item label="权限名称" prop="name">
          <el-input v-model="formData.name" style="width:90%" />
        </el-form-item>

        <el-form-item label="权限标识" prop="code">
          <el-input v-model="formData.code" style="width:90%" />
        </el-form-item>

        <el-form-item label="权限描述">
          <el-input v-model="formData.description" style="width:90%" />
        </el-form-item>

        <el-form-item label="开启">
          <el-switch v-model="formData.enVisible" active-value="1" inactive-value="0" />
        </el-form-item>

      </el-form>

      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button size="small" type="primary" @click="btnOk">确定</el-button>

          <el-button size="small" @click="showDialog = false">取消</el-button>

        </el-col>

      </el-row>

    </el-dialog>

  </div>

</template>

<script>
import { getPermissionListAPI, addPermissionAPI, delPermissionAPI, editPermissionAPI, getPermissionDetailAPI } from '@/api/permission'
import { buildTree } from '@/utils'
import { Message } from 'element-ui'

export default {
  name: 'Permission',
  data() {
    return {
      permissionList: [],
      showDialog: false,
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 默认关闭
      },
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      }
    }
  },
  computed: {
    showText() {
      return this.formData.id ? '编辑' : '新增'
    }
  },
  watch: {
    showDialog(val) {
      if (!val) {
        this.formData = {
          name: '', // 名称
          code: '', // 标识
          description: '', // 描述
          type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
          pid: '', // 因为做的是树 需要知道添加到哪个节点下了
          enVisible: '0' // 默认关闭
        }
        this.$refs.perForm.resetFields()
      }
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    // 获取权限点列表
    async getPermissionList() {
      const res = await getPermissionListAPI()
      this.permissionList = buildTree(res)
      console.log('permissionList --->', this.permissionList)
    },
    // 点击添加权限点
    async addPermission(pid, type) {
      this.showDialog = true
      this.formData.pid = pid
      this.formData.type = type
    },
    // 添加权限
    async btnOk() {
      this.$refs.perForm.validate()
      if (this.formData.id) {
        await this.editPermission()
        return
      }
      await addPermissionAPI(this.formData)
      Message.success('添加成功')
      this.showDialog = false
      this.getPermissionList()
    },
    // 获取权限点详情
    async getPermissionDetail(id) {
      this.showDialog = true
      const res = await getPermissionDetailAPI(id)
      this.formData = res
      Message.success('获取成功')
    },
    // 编辑权限点
    async editPermission() {
      await editPermissionAPI(this.formData)
      Message.success('编辑成功')
      this.showDialog = false
      this.getPermissionList()
    },
    // 删除权限点
    async deletePermission(id) {
      await delPermissionAPI(id)
      Message.success('删除成功')
      this.getPermissionList()
    }
  }
}
</script>

<style>
.btn-add {
  margin: 10px;
}
</style>
